Andrew's git - gitweb.git/blob - t/t1700-split-index.sh

   1#!/bin/sh
   2
   3test_description='split index mode tests'
   4
   5. ./test-lib.sh
   6
   7# We need total control of index splitting here
   8sane_unset GIT_TEST_SPLIT_INDEX
   9# A couple of tests expect the index to have a specific checksum,
  10# but the presence of the optional FSMN extension would interfere
  11# with those checks, so disable it in this test script.
  12sane_unset GIT_FSMONITOR_TEST
  13
  14# Create a file named as $1 with content read from stdin.
  15# Set the file's mtime to a few seconds in the past to avoid racy situations.
  16create_non_racy_file () {
  17        cat >"$1" &&
  18        test-tool chmtime =-5 "$1"
  19}
  20
  21test_expect_success 'enable split index' '
  22        git config splitIndex.maxPercentChange 100 &&
  23        git update-index --split-index &&
  24        test-tool dump-split-index .git/index >actual &&
  25        indexversion=$(test-tool index-version <.git/index) &&
  26        if test "$indexversion" = "4"
  27        then
  28                own=432ef4b63f32193984f339431fd50ca796493569
  29                base=508851a7f0dfa8691e9f69c7f055865389012491
  30        else
  31                own=8299b0bcd1ac364e5f1d7768efb62fa2da79a339
  32                base=39d890139ee5356c7ef572216cebcd27aa41f9df
  33        fi &&
  34        cat >expect <<-EOF &&
  35        own $own
  36        base $base
  37        replacements:
  38        deletions:
  39        EOF
  40        test_cmp expect actual
  41'
  42
  43test_expect_success 'add one file' '
  44        create_non_racy_file one &&
  45        git update-index --add one &&
  46        git ls-files --stage >ls-files.actual &&
  47        cat >ls-files.expect <<-EOF &&
  48        100644 $EMPTY_BLOB 0    one
  49        EOF
  50        test_cmp ls-files.expect ls-files.actual &&
  51
  52        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
  53        cat >expect <<-EOF &&
  54        base $base
  55        100644 $EMPTY_BLOB 0    one
  56        replacements:
  57        deletions:
  58        EOF
  59        test_cmp expect actual
  60'
  61
  62test_expect_success 'disable split index' '
  63        git update-index --no-split-index &&
  64        git ls-files --stage >ls-files.actual &&
  65        cat >ls-files.expect <<-EOF &&
  66        100644 $EMPTY_BLOB 0    one
  67        EOF
  68        test_cmp ls-files.expect ls-files.actual &&
  69
  70        BASE=$(test-tool dump-split-index .git/index | sed -n "s/^own/base/p") &&
  71        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
  72        cat >expect <<-EOF &&
  73        not a split index
  74        EOF
  75        test_cmp expect actual
  76'
  77
  78test_expect_success 'enable split index again, "one" now belongs to base index"' '
  79        git update-index --split-index &&
  80        git ls-files --stage >ls-files.actual &&
  81        cat >ls-files.expect <<-EOF &&
  82        100644 $EMPTY_BLOB 0    one
  83        EOF
  84        test_cmp ls-files.expect ls-files.actual &&
  85
  86        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
  87        cat >expect <<-EOF &&
  88        $BASE
  89        replacements:
  90        deletions:
  91        EOF
  92        test_cmp expect actual
  93'
  94
  95test_expect_success 'modify original file, base index untouched' '
  96        echo modified | create_non_racy_file one &&
  97        git update-index one &&
  98        git ls-files --stage >ls-files.actual &&
  99        cat >ls-files.expect <<-EOF &&
 100        100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
 101        EOF
 102        test_cmp ls-files.expect ls-files.actual &&
 103
 104        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 105        q_to_tab >expect <<-EOF &&
 106        $BASE
 107        100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 108        replacements: 0
 109        deletions:
 110        EOF
 111        test_cmp expect actual
 112'
 113
 114test_expect_success 'add another file, which stays index' '
 115        create_non_racy_file two &&
 116        git update-index --add two &&
 117        git ls-files --stage >ls-files.actual &&
 118        cat >ls-files.expect <<-EOF &&
 119        100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
 120        100644 $EMPTY_BLOB 0    two
 121        EOF
 122        test_cmp ls-files.expect ls-files.actual &&
 123
 124        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 125        q_to_tab >expect <<-EOF &&
 126        $BASE
 127        100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 128        100644 $EMPTY_BLOB 0    two
 129        replacements: 0
 130        deletions:
 131        EOF
 132        test_cmp expect actual
 133'
 134
 135test_expect_success 'remove file not in base index' '
 136        git update-index --force-remove two &&
 137        git ls-files --stage >ls-files.actual &&
 138        cat >ls-files.expect <<-EOF &&
 139        100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
 140        EOF
 141        test_cmp ls-files.expect ls-files.actual &&
 142
 143        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 144        q_to_tab >expect <<-EOF &&
 145        $BASE
 146        100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 147        replacements: 0
 148        deletions:
 149        EOF
 150        test_cmp expect actual
 151'
 152
 153test_expect_success 'remove file in base index' '
 154        git update-index --force-remove one &&
 155        git ls-files --stage >ls-files.actual &&
 156        test_must_be_empty ls-files.actual &&
 157
 158        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 159        cat >expect <<-EOF &&
 160        $BASE
 161        replacements:
 162        deletions: 0
 163        EOF
 164        test_cmp expect actual
 165'
 166
 167test_expect_success 'add original file back' '
 168        create_non_racy_file one &&
 169        git update-index --add one &&
 170        git ls-files --stage >ls-files.actual &&
 171        cat >ls-files.expect <<-EOF &&
 172        100644 $EMPTY_BLOB 0    one
 173        EOF
 174        test_cmp ls-files.expect ls-files.actual &&
 175
 176        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 177        cat >expect <<-EOF &&
 178        $BASE
 179        100644 $EMPTY_BLOB 0    one
 180        replacements:
 181        deletions: 0
 182        EOF
 183        test_cmp expect actual
 184'
 185
 186test_expect_success 'add new file' '
 187        create_non_racy_file two &&
 188        git update-index --add two &&
 189        git ls-files --stage >actual &&
 190        cat >expect <<-EOF &&
 191        100644 $EMPTY_BLOB 0    one
 192        100644 $EMPTY_BLOB 0    two
 193        EOF
 194        test_cmp expect actual
 195'
 196
 197test_expect_success 'unify index, two files remain' '
 198        git update-index --no-split-index &&
 199        git ls-files --stage >ls-files.actual &&
 200        cat >ls-files.expect <<-EOF &&
 201        100644 $EMPTY_BLOB 0    one
 202        100644 $EMPTY_BLOB 0    two
 203        EOF
 204        test_cmp ls-files.expect ls-files.actual &&
 205
 206        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 207        cat >expect <<-EOF &&
 208        not a split index
 209        EOF
 210        test_cmp expect actual
 211'
 212
 213test_expect_success 'rev-parse --shared-index-path' '
 214        test_create_repo split-index &&
 215        (
 216                cd split-index &&
 217                git update-index --split-index &&
 218                echo .git/sharedindex* >expect &&
 219                git rev-parse --shared-index-path >actual &&
 220                test_cmp expect actual &&
 221                mkdir subdirectory &&
 222                cd subdirectory &&
 223                echo ../.git/sharedindex* >expect &&
 224                git rev-parse --shared-index-path >actual &&
 225                test_cmp expect actual
 226        )
 227'
 228
 229test_expect_success 'set core.splitIndex config variable to true' '
 230        git config core.splitIndex true &&
 231        create_non_racy_file three &&
 232        git update-index --add three &&
 233        git ls-files --stage >ls-files.actual &&
 234        cat >ls-files.expect <<-EOF &&
 235        100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 236        100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       three
 237        100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 238        EOF
 239        test_cmp ls-files.expect ls-files.actual &&
 240        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 241        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 242        cat >expect <<-EOF &&
 243        $BASE
 244        replacements:
 245        deletions:
 246        EOF
 247        test_cmp expect actual
 248'
 249
 250test_expect_success 'set core.splitIndex config variable to false' '
 251        git config core.splitIndex false &&
 252        git update-index --force-remove three &&
 253        git ls-files --stage >ls-files.actual &&
 254        cat >ls-files.expect <<-EOF &&
 255        100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 256        100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 257        EOF
 258        test_cmp ls-files.expect ls-files.actual &&
 259        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 260        cat >expect <<-EOF &&
 261        not a split index
 262        EOF
 263        test_cmp expect actual
 264'
 265
 266test_expect_success 'set core.splitIndex config variable back to true' '
 267        git config core.splitIndex true &&
 268        create_non_racy_file three &&
 269        git update-index --add three &&
 270        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 271        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 272        cat >expect <<-EOF &&
 273        $BASE
 274        replacements:
 275        deletions:
 276        EOF
 277        test_cmp expect actual &&
 278        create_non_racy_file four &&
 279        git update-index --add four &&
 280        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 281        cat >expect <<-EOF &&
 282        $BASE
 283        100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       four
 284        replacements:
 285        deletions:
 286        EOF
 287        test_cmp expect actual
 288'
 289
 290test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
 291        git config --unset splitIndex.maxPercentChange &&
 292        create_non_racy_file five &&
 293        git update-index --add five &&
 294        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 295        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 296        cat >expect <<-EOF &&
 297        $BASE
 298        replacements:
 299        deletions:
 300        EOF
 301        test_cmp expect actual &&
 302        create_non_racy_file six &&
 303        git update-index --add six &&
 304        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 305        cat >expect <<-EOF &&
 306        $BASE
 307        100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       six
 308        replacements:
 309        deletions:
 310        EOF
 311        test_cmp expect actual
 312'
 313
 314test_expect_success 'check splitIndex.maxPercentChange set to 0' '
 315        git config splitIndex.maxPercentChange 0 &&
 316        create_non_racy_file seven &&
 317        git update-index --add seven &&
 318        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 319        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 320        cat >expect <<-EOF &&
 321        $BASE
 322        replacements:
 323        deletions:
 324        EOF
 325        test_cmp expect actual &&
 326        create_non_racy_file eight &&
 327        git update-index --add eight &&
 328        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 329        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 330        cat >expect <<-EOF &&
 331        $BASE
 332        replacements:
 333        deletions:
 334        EOF
 335        test_cmp expect actual
 336'
 337
 338test_expect_success 'shared index files expire after 2 weeks by default' '
 339        create_non_racy_file ten &&
 340        git update-index --add ten &&
 341        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 342        just_under_2_weeks_ago=$((5-14*86400)) &&
 343        test-tool chmtime =$just_under_2_weeks_ago .git/sharedindex.* &&
 344        create_non_racy_file eleven &&
 345        git update-index --add eleven &&
 346        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 347        just_over_2_weeks_ago=$((-1-14*86400)) &&
 348        test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 349        create_non_racy_file twelve &&
 350        git update-index --add twelve &&
 351        test $(ls .git/sharedindex.* | wc -l) -le 2
 352'
 353
 354test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' '
 355        git config splitIndex.sharedIndexExpire "16.days.ago" &&
 356        test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 357        create_non_racy_file thirteen &&
 358        git update-index --add thirteen &&
 359        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 360        just_over_16_days_ago=$((-1-16*86400)) &&
 361        test-tool chmtime =$just_over_16_days_ago .git/sharedindex.* &&
 362        create_non_racy_file fourteen &&
 363        git update-index --add fourteen &&
 364        test $(ls .git/sharedindex.* | wc -l) -le 2
 365'
 366
 367test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"' '
 368        git config splitIndex.sharedIndexExpire never &&
 369        just_10_years_ago=$((-365*10*86400)) &&
 370        test-tool chmtime =$just_10_years_ago .git/sharedindex.* &&
 371        create_non_racy_file fifteen &&
 372        git update-index --add fifteen &&
 373        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 374        git config splitIndex.sharedIndexExpire now &&
 375        just_1_second_ago=-1 &&
 376        test-tool chmtime =$just_1_second_ago .git/sharedindex.* &&
 377        create_non_racy_file sixteen &&
 378        git update-index --add sixteen &&
 379        test $(ls .git/sharedindex.* | wc -l) -le 2
 380'
 381
 382while read -r mode modebits
 383do
 384        test_expect_success POSIXPERM "split index respects core.sharedrepository $mode" '
 385                # Remove existing shared index files
 386                git config core.splitIndex false &&
 387                git update-index --force-remove one &&
 388                rm -f .git/sharedindex.* &&
 389                # Create one new shared index file
 390                git config core.sharedrepository "$mode" &&
 391                git config core.splitIndex true &&
 392                create_non_racy_file one &&
 393                git update-index --add one &&
 394                echo "$modebits" >expect &&
 395                test_modebits .git/index >actual &&
 396                test_cmp expect actual &&
 397                shared=$(ls .git/sharedindex.*) &&
 398                case "$shared" in
 399                *" "*)
 400                        # we have more than one???
 401                        false ;;
 402                *)
 403                        test_modebits "$shared" >actual &&
 404                        test_cmp expect actual ;;
 405                esac
 406        '
 407done <<\EOF
 4080666 -rw-rw-rw-
 4090642 -rw-r---w-
 410EOF
 411
 412test_expect_success POSIXPERM,SANITY 'graceful handling when splitting index is not allowed' '
 413        test_create_repo ro &&
 414        (
 415                cd ro &&
 416                test_commit initial &&
 417                git update-index --split-index &&
 418                test -f .git/sharedindex.*
 419        ) &&
 420        cp ro/.git/index new-index &&
 421        test_when_finished "chmod u+w ro/.git" &&
 422        chmod u-w ro/.git &&
 423        GIT_INDEX_FILE="$(pwd)/new-index" git -C ro update-index --split-index &&
 424        chmod u+w ro/.git &&
 425        rm ro/.git/sharedindex.* &&
 426        GIT_INDEX_FILE=new-index git ls-files >actual &&
 427        echo initial.t >expected &&
 428        test_cmp expected actual
 429'
 430
 431test_expect_success 'writing split index with null sha1 does not write cache tree' '
 432        git config core.splitIndex true &&
 433        git config splitIndex.maxPercentChange 0 &&
 434        git commit -m "commit" &&
 435        {
 436                git ls-tree HEAD &&
 437                printf "160000 commit $ZERO_OID\\tbroken\\n"
 438        } >broken-tree &&
 439        echo "add broken entry" >msg &&
 440
 441        tree=$(git mktree <broken-tree) &&
 442        test_tick &&
 443        commit=$(git commit-tree $tree -p HEAD <msg) &&
 444        git update-ref HEAD "$commit" &&
 445        GIT_ALLOW_NULL_SHA1=1 git reset --hard &&
 446        test_might_fail test-tool dump-cache-tree >cache-tree.out &&
 447        test_line_count = 0 cache-tree.out
 448'
 449
 450test_done